Many hierarchical relationships have a veto provision that can be exercised at any time, even after another relationship has been well established. This kind of veto is popular because it seems to provide a safety switch to shut down a relationship that becomes too intense or threatening. But that sense of safety can carry a very high price. We have both seen many couples who have executed a veto only to break up shortly thereafter. Any time we choose to break our partner’s heart, the damage to our own relationship may be permanent.